ECZ 2021 · GCE Paper 1 — Travel Graphs
The diagram is a speed-time graph of a moving car. The car decelerates uniformly from a speed of 24m/s to a speed of Vms in 3 seconds. Find the speed V, if the deceleration in the first 3 seconds was 2m/s2.
- A. 18 m/s
- B. 6 m/s
- C. 22 m/s
- D. 12 m/s
Verified working — step 1
Deceleration is speed LOST per second - find the total loss over the 3 seconds, then subtract it from the start.The full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
Original examination question © Examinations Council of Zambia. Worked solution and commentary © G12 Titan — not to be reproduced without permission.
Have a different question?
Search it — if it is from a past paper or a school mock, chances are we have it worked out, or one that uses the same method.
Search any past-paper question